Flow permanence and macroinvertebrate community variability in limestone spring systems

被引:62
作者
Smith, H [1 ]
Wood, PJ
机构
[1] Univ Bradford, Sch Engn Design & Technol, Pennine Water Grp, Bradford BD7 1DP, W Yorkshire, England
[2] Univ Loughborough, Dept Geog, Loughborough LE11 3TU, Leics, England
关键词
flow permanence; macroinvertebrates; groundwater; crenobiology; limestone springs;
D O I
10.1023/A:1022932303652
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Limestone ( karst) springs within the River Wye catchment ( Derbyshire, U. K.) were investigated to examine the influence of physical and chemical characteristics and habitat variability on macroinvertebrate community composition. Flow permanence had a greater influence on the invertebrate community than any other physical or chemical variable examined. Clear differences in the macroinvertebrate community were observed between perennial (7) and intermittent springs (11) and the mainstem river. Springs support distinct communities, with some taxa exclusively recorded at the source or within the springbrook (e.g. Agabus guttatus [Paykull] and Micropterna lateralis [Stephens]). A degree of faunal overlap with the mainstem river occurred suggesting that perennial springs may form a refugium for many taxa and that intermittent springs are rapidly colonised by taxa from the mainstem river after the resumption of flow.
引用
收藏
页码:45 / 58
页数:14
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